Provided by: tcl8.6-doc_8.6.9+dfsg-2_all bug

NAME

       lappend - Append list elements onto a variable

SYNOPSIS

       lappend varName ?value value value ...?
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DESCRIPTION

       This  command treats the variable given by varName as a list and appends each of the value
       arguments to that list as a separate element, with spaces between  elements.   If  varName
       does  not  exist,  it  is  created  as  a list with elements given by the value arguments.
       Lappend is similar to append except that the values are appended as list  elements  rather
       than  raw text.  This command provides a relatively efficient way to build up large lists.
       For example, “lappend a $b” is much more efficient than “set a [concat $a [list $b]]” when
       $a is long.

EXAMPLE

       Using lappend to build up a list of numbers.

              % set var 1
              1
              % lappend var 2
              1 2
              % lappend var 3 4 5
              1 2 3 4 5

SEE ALSO

       list(3tcl),   lindex(3tcl),   linsert(3tcl),   llength(3tcl),   lset(3tcl),   lsort(3tcl),
       lrange(3tcl)

KEYWORDS

       append, element, list, variable